var DockerSetNet = {
  wifiName: '',
  password: '',
  sequence: 0,
  writecharacteristicUUID: '',
  success: (mac) => { },
  fail: (code, msg = '') => { },
  deviceId: '',
  isSetNet: false,
  setNetSuccess: false,
  checkTimer: undefined,
  retryCount: 0,
  isAndroid: false,
  create: function () {
    var setNet = {};
    setNet.doFail = function (code, msg) {
      DockerSetNet.fail(code, msg);
      setNet.disConnect();
    };

    setNet.doConnectFail = () => {
      DockerSetNet.isSetNet = false;
      DockerSetNet.fail(10004, '设备连接失败');
      setNet.disConnect();
    }

    //连接设备
    setNet.connect = function (device) {
      console.log('连接设备...');
      setTimeout(() => {
        wx.createBLEConnection({
          allowDuplicatesKey: true,
          deviceId: device.deviceId,
          success: function (res) {
            console.log('设备连接成功');
            DockerSetNet.deviceId = device.deviceId;
            setNet.startCheckTimer();
            setNet.getServices(device.deviceId);
          },
          fail: function (error) {
            console.log(error);
            console.log(`连接失败次数:${DockerSetNet.retryCount}`)
            if (DockerSetNet.retryCount >= 3) {
              setNet.doConnectFail();
              return;
            }
            DockerSetNet.retryCount++;
            setNet.connect(device);
          }
        })
      }, 500);
    };

    setNet.startCheckTimer = function () {
      DockerSetNet.checkTimer = setTimeout(() => {
        console.log('检查配网是否成功');
        if (!DockerSetNet.setNetSuccess) {
          //配网超时
          setNet.doFail(10005, '配网超时');
          setNet.disConnect();
        }
      }, 30000);
    };

    //发现服务
    setNet.getServices = function (deviceId) {
      wx.getBLEDeviceServices({
        deviceId: deviceId,
        success: function (res) {
          console.log('发现服务成功');
          setNet.getCharacteristics(deviceId, res.services[0].uuid);
        }
      })
    }

    setNet.getCharacteristics = function (deviceId, serviceUUID) {
      wx.getBLEDeviceCharacteristics({
        deviceId: deviceId,
        serviceId: serviceUUID,
        success: function (res) {
          console.log('获取特征值成功');
          console.log(res);
          DockerSetNet.writecharacteristicUUID = res.characteristics[0].uuid;
          setNet.notify(deviceId, serviceUUID, res.characteristics[1].uuid);
        },
      })
    };

    setNet.sendData = function (deviceId, serviceUUID, characteristicUUID) {
      setNet.write(deviceId, serviceUUID, characteristicUUID, setNet.getOPModeData());
      setNet.write(deviceId, serviceUUID, characteristicUUID, setNet.getSSIDData());
      setNet.write(deviceId, serviceUUID, characteristicUUID, setNet.getPasswordData());
      setNet.write(deviceId, serviceUUID, characteristicUUID, setNet.getConnectData());
    };

    setNet.getConnectData = function () {
      let dataBuffer = new ArrayBuffer(3);
      let dataView = new DataView(dataBuffer);
      dataView.setUint8(0, (0x03 << 2) | 0x00);
      dataView.setInt8(1, 0x00);
      dataView.setInt8(2, DockerSetNet.sequence);
      console.log(setNet.arr2Hex(dataBuffer));
      return dataBuffer;
    }

    setNet.getSSIDData = function () {
      let ssidBytes = setNet.str2byte(DockerSetNet.wifiName);
      let dataBuffer = new ArrayBuffer(4 + ssidBytes.length + 2);
      let dataView = new DataView(dataBuffer);
      dataView.setUint8(0, (0x02 << 2) | 0x01);
      dataView.setUint8(1, 0x00 | 0x02);             //不加密,有校验,手机发,没有后续包,无ACK
      dataView.setUint8(2, DockerSetNet.sequence);                     //序列
      dataView.setUint8(3, ssidBytes.length);                  //data length
      for (let i = 0; i < ssidBytes.length; i++) {
        dataView.setInt8(4 + i, ssidBytes[i]);
      }

      let crcData = setNet.GetCRCWithData(dataBuffer.slice(0, dataBuffer.byteLength - 2));
      let crcView = new DataView(crcData);
      dataView.setInt8(dataBuffer.byteLength - 2, crcView.getInt8(0));
      dataView.setInt8(dataBuffer.byteLength - 1, crcView.getInt8(1));
      console.log(setNet.arr2Hex(dataBuffer));
      return dataBuffer;
    };

    setNet.getPasswordData = function () {
      let passwordBytes = setNet.str2byte(DockerSetNet.password);
      let dataBuffer = new ArrayBuffer(4 + passwordBytes.length + 2);
      let dataView = new DataView(dataBuffer);
      dataView.setUint8(0, (0x03 << 2) | 0x01);
      dataView.setUint8(1, 0x00 | 0x02);             //不加密,有校验,手机发,没有后续包,无ACK
      dataView.setUint8(2, DockerSetNet.sequence);                     //序列
      dataView.setUint8(3, passwordBytes.length);                  //data length
      for (let i = 0; i < passwordBytes.length; i++) {
        dataView.setInt8(4 + i, passwordBytes[i]);
      }

      let crcData = setNet.GetCRCWithData(dataBuffer.slice(0, dataBuffer.byteLength - 2));
      let crcView = new DataView(crcData);
      dataView.setInt8(dataBuffer.byteLength - 2, crcView.getInt8(0));
      dataView.setInt8(dataBuffer.byteLength - 1, crcView.getInt8(1));
      console.log(setNet.arr2Hex(dataBuffer));
      return dataBuffer;
    };

    setNet.str2byte = function (str) {
      var bytes = new Array();
      for (var i = 0; i < str.length; i++) {
        var c = str.charCodeAt(i);
        var s = parseInt(c).toString(2);
        if (c >= parseInt("000080", 16) && c <= parseInt("0007FF", 16)) {
          var af = "";
          for (var j = 0; j < (11 - s.length); j++) {
            af += "0";
          }
          af += s;
          var n1 = parseInt("110" + af.substring(0, 5), 2);
          var n2 = parseInt("110" + af.substring(5), 2);
          if (n1 > 127) n1 -= 256;
          if (n2 > 127) n2 -= 256;
          bytes.push(n1);
          bytes.push(n2);
        } else if (c >= parseInt("000800", 16) && c <= parseInt("00FFFF", 16)) {
          var af = "";
          for (var j = 0; j < (16 - s.length); j++) {
            af += "0";
          }
          af += s;
          var n1 = parseInt("1110" + af.substring(0, 4), 2);
          var n2 = parseInt("10" + af.substring(4, 10), 2);
          var n3 = parseInt("10" + af.substring(10), 2);
          if (n1 > 127) n1 -= 256;
          if (n2 > 127) n2 -= 256;
          if (n3 > 127) n3 -= 256;
          bytes.push(n1);
          bytes.push(n2);
          bytes.push(n3);
        } else if (c >= parseInt("010000", 16) && c <= parseInt("10FFFF", 16)) {
          var af = "";
          for (var j = 0; j < (21 - s.length); j++) {
            af += "0";
          }
          af += s;
          var n1 = parseInt("11110" + af.substring(0, 3), 2);
          var n2 = parseInt("10" + af.substring(3, 9), 2);
          var n3 = parseInt("10" + af.substring(9, 15), 2);
          var n4 = parseInt("10" + af.substring(15), 2);
          if (n1 > 127) n1 -= 256;
          if (n2 > 127) n2 -= 256;
          if (n3 > 127) n3 -= 256;
          if (n4 > 127) n4 -= 256;
          bytes.push(n1);
          bytes.push(n2);
          bytes.push(n3);
          bytes.push(n4);
        } else {
          bytes.push(c & 0xff);
        }
      }
      return bytes;
    }

    //设置Opmode
    setNet.getOPModeData = function () {
      var dataBuffer = new ArrayBuffer(5 + 2);
      let dataView = new DataView(dataBuffer);
      dataView.setUint8(0, (0x02 << 2) | 0x00); //控制包，设置Opmode
      dataView.setUint8(1, 0x00 | 0x02);      //不加密,有校验,手机发,没有后续包,无ACK 
      dataView.setUint8(2, DockerSetNet.sequence);         //序列
      dataView.setUint8(3, 0x01);             //data length
      dataView.setUint8(4, 0x01);             // STAOpmode

      let crcData = setNet.GetCRCWithData(dataBuffer.slice(0, 5));
      let crcView = new DataView(crcData);
      dataView.setInt8(5, crcView.getInt8(0));
      dataView.setInt8(6, crcView.getInt8(1));
      console.log(setNet.arr2Hex(dataBuffer));
      return dataBuffer;
    }

    setNet.GetCRCWithData = function (data) {
      var CRC16_TABLE = [
        0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
        0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
        0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485, 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
        0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4, 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
        0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823, 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
        0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12, 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
        0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
        0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70, 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
        0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f, 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
        0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
        0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d, 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
        0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c, 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
        0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab, 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
        0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a, 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
        0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
        0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
      ];
      //得到校验值
      var crc = 0;
      crc = ~(crc & 0xffff);
      let view = new DataView(data);
      for (let i = 2; i < data.byteLength; i++) {
        crc = CRC16_TABLE[((crc & 0xffff) >> 8) ^ (view.getInt8(i) & 0xff)] ^ ((crc & 0xffff) << 8);
      }
      var value = ~(crc & 0xffff);
      let arrayBuffer = new ArrayBuffer(2);
      let dataView = new DataView(arrayBuffer);
      dataView.setInt16(0, value, true);
      console.log(`value=${value}`);
      return arrayBuffer;
    }

    setNet.arr2Hex = function (buffer, join = '') {
      return Array.prototype.map.call(
        new Uint8Array(buffer),
        function (bit) {
          return ('00' + bit.toString(16)).slice(-2).toUpperCase();
        }
      ).join(join);
    }

    setNet.write = function (deviceId, serviceUUID, characteristicUUID, value) {
      console.log(`sequence:${DockerSetNet.sequence}`);
      wx.writeBLECharacteristicValue({
        deviceId: deviceId,
        serviceId: serviceUUID,
        characteristicId: characteristicUUID,
        value: value,
        success: function (res) {
          console.log('数据写入成功');
        },
        fail: function (error) {
          console.log('数据写入失败');
          console.log(error);
        }
      });
      DockerSetNet.sequence = DockerSetNet.sequence + 1
    }

    setNet.notify = function (deviceId, serviceUUID, characteristicUUID) {
      wx.onBLECharacteristicValueChange(function (res) {
        console.log(setNet.arr2Hex(res.value));
        if (DockerSetNet.setNetSuccess) {
          return;
        }
        DockerSetNet.setNetSuccess = true;
        if (res.value.byteLength < 15) {
          setNet.doFail(10003, '底座响应的mac地址数据长度无效');
          return;
        }
        console.log(res);
        let mac = '';
        if (DockerSetNet.isAndroid) {
          mac = DockerSetNet.deviceId;
          let lastStr = mac.substr(mac.length - 2, 2);
          let num = parseInt(lastStr, 16);
          num = num - 2;
          lastStr = setNet.toHex(num);
          mac = mac.substr(0,mac.length - 2) + lastStr;
        } else {
          mac = setNet.arr2Hex(res.value.slice(9, 15), ':')
        }
        console.log(mac);
        DockerSetNet.success(mac);
        setNet.disConnect();
      });

      wx.notifyBLECharacteristicValueChange({
        deviceId: deviceId,
        serviceId: serviceUUID,
        characteristicId: characteristicUUID,
        state: true,
        success: function (res) {
          console.log('订阅成功');
          console.log(res);
          setTimeout(() => {
            setNet.sendData(deviceId, serviceUUID, DockerSetNet.writecharacteristicUUID);
          }, 500);
        },
      });
    };

    setNet.disConnect = function () {
      DockerSetNet.isSetNet = false;
      DockerSetNet.retryCount = 0;
      DockerSetNet.sequence = 0;
      if (DockerSetNet.checkTimer != undefined) {
        clearTimeout(DockerSetNet.checkTimer);
      }
      wx.stopBluetoothDevicesDiscovery({
        success: function (res) {
          console.log('停止扫描成功');
        },
      })
      wx.closeBLEConnection({
        deviceId: DockerSetNet.deviceId,
        success: function (res) {
          console.log('设备连接断开成功');
          wx.closeBluetoothAdapter({
            success: function (res) {
              console.log('关闭蓝牙成功');
            },
          })
        }
      });
    };

    setNet.start = function (wifiName, password, success = () => { }, fail = (code = 0, msg = '') => { }) {
      if (DockerSetNet.isSetNet) {
        return;
      }

      if (wifiName == undefined || wifiName == '') {
        throw new Error('wifi名称不能为空');
      }
      if (password == undefined || password == '') {
        throw new Error('wifi密码不能为空');
      }

      DockerSetNet.isSetNet = true;
      DockerSetNet.wifiName = wifiName;
      DockerSetNet.password = password;
      DockerSetNet.success = success;
      DockerSetNet.fail = fail;
      DockerSetNet.setNetSuccess = false;
      if (typeof success !== 'function') {
        throw new Error('success参数必须是函数');
      }
      if (typeof fail !== 'function') {
        throw new Error('fail参数必须是函数');
      }
      console.log(`wifiname:${wifiName},password:${password}`);
      let hasScanDevice = false;
      wx.onBluetoothDeviceFound(function (res) {
        res.devices.forEach(function (device) {
          if (device.name === 'PROTON_DEVICE') {
            if (hasScanDevice) {
              wx.stopBluetoothDevicesDiscovery();
              return;
            }
            hasScanDevice = true;
            console.log(device);
            setNet.connect(device);
          }
        });
      });

      let info = wx.getSystemInfoSync();
      DockerSetNet.isAndroid = (info.platform == 'android');
      console.log(`是否是android:${DockerSetNet.isAndroid}`);

      wx.openBluetoothAdapter({
        success: function (res) {
          console.log('打开蓝牙成功');
          wx.startBluetoothDevicesDiscovery({
            allowDuplicatesKey: true,
            success: function (res) {
              console.log('发现设备成功');
            },
            fail: function (res) {
              setNet.doFail(10001, '发现设备失败');
            }
          })
        },
        fail: function () {
          setNet.doFail(10002, '打开蓝牙失败');
        }
      })
    }

    setNet.toHex = function (num) {
      return ("0" + (Number(num).toString(16))).slice(-2).toUpperCase();
    }

    return setNet;
  }
};

module.exports = DockerSetNet